There is no festival or any function being performed before doing pooje to Lord Ganesha; he removes the obstacles from your path. So here comes one of the popular Ganesha Stotras in English and a screenshot followed in Kannada.
॥ Vandipe Ninage Gananatha Lyrics ॥
modal vandipe ninage gananatha
banda vigna kaleyo gananatha
modal vandipe ninage gananatha ॥ pa ॥
hinde ravananu madadinda ninna pujisade
sanda ranadalli gananatha ॥ 1 ॥
madhavana agneyinda dharmaraya poojisalu
sadhisida raajya gananatha ॥ 2 ॥
mangala muruti guru ranga vithalana pada
hingade paliso gananatha ॥ 3 ॥